2579221920 has 192 divisors, whose sum is σ = 8889181056. Its totient is φ = 623431680.

The previous prime is 2579221913. The next prime is 2579221933. The reversal of 2579221920 is 291229752.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2940522 + ... + 2941398.

It is an arithmetic number, because the mean of its divisors is an integer number (46297818).

Almost surely, 2^2579221920 is an apocalyptic number.

2579221920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2579221920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4444590528).

2579221920 is an abundant number, since it is smaller than the sum of its proper divisors (6309959136).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2579221920 is a wasteful number, since it uses less digits than its factorization.

2579221920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1463 (or 1455 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 39.

The square root of 2579221920 is about 50786.0406017244. The cubic root of 2579221920 is about 1371.3960798354.

The spelling of 2579221920 in words is "two billion, five hundred seventy-nine million, two hundred twenty-one thousand, nine hundred twenty".